Title: Electromagnetic Induction
Grade Level: 12
Course: Physics II A
Lesson Overview:
In this lesson students will learn about electromagnetic induction. Through an inquiry lab students will be forced to record their observations of electromagnetic induction before being taught about electromagnetic induction. Students will be guided to an understanding that changing magnetic fields create electric currents. A subsequent lesson will teach the students that although the changing magnetic field does indeed create an electric current it does not pull the current with the magnetic field and that instead the current is creacted in opposition to the magnetic field. This will be explained through a discussion of conservation of energy. Students will then use the ideas of electromagnetic induction to predict the direction of the current in a variety of different scenarios for both classwork. Students will complete a lab report based off of the guided inquiry lab for assessment.
Learning Performances
From this lesson students should be able to identify the direction of induced current for a variety of different scenarios.
Time Required
10 min – Recap, Attendance, Collect HW
20 min – Activity: Guided Inquiry Electromagnetic InductionLab
20 min - Lesson: Electromagnetic Induction
10 min - Classwork: Predict the direction of the current
10 min - Closure: Wrap up, Lab Report, Assign HW
Instructional Sequence
Recap
Question on board: students will determine the direction of a magnetic field due to a current carrying wire.
Collect HW
Take attendance.
Walk around checking students' understanding.
Use the students answers to recap over moving charges producing magnetic fields
Activity
Students will work in groups of 2 or 3 to complete the guided inquiry lab.
Have students report out their discoveries.
Lesson
Instruct students on the principles of electromagnetic induction
Emphasize that current is formed to oppose the change in the magnetic field
Use conservation of energy to prove the direction of current Classwork
Students will be given a worksheet with a bunch of different diagrams, students must predict the direction of the current in the wire based off of electromagnetic induction..
Closure
Recap electromagnetic induction.
Have students go over their guided inquiry lab and see how it demonstrates electromagnetic induction
Students will complete a second worksheet of diagrams for homework.
Assessing Student Understanding
The students will be assessed on their production of a brief lab report write up.
Is it clear that the lesson addresses both important content and scientific practices?
No. No standards, and only a single objective are included. ??
Instructional Activities
What science practices are required?
Students make observations. Though the lesson overview suggests that students will make predictions, this is not contained in the worksheet.
How are the science practices supported?
Worksheet prompts ask students to record observations and interpretations, but does not ask students to support their claims with evidence.
It is difficult to tell how instruction supports student thinking, since there is not detail included.
How are the science practices assessed?
Though it is mentioned that students will write a lab report, there is not indication about how or on what they will be assessed. The worksheet provides a good opportunity for formative assessment, but it is not clear that it will occur, i.e. what questions T will ask.
Grade Level: 12
Course: Physics II A
Lesson Overview:
In this lesson students will learn about electromagnetic induction. Through an inquiry lab students will be forced to record their observations of electromagnetic induction before being taught about electromagnetic induction. Students will be guided to an understanding that changing magnetic fields create electric currents. A subsequent lesson will teach the students that although the changing magnetic field does indeed create an electric current it does not pull the current with the magnetic field and that instead the current is creacted in opposition to the magnetic field. This will be explained through a discussion of conservation of energy. Students will then use the ideas of electromagnetic induction to predict the direction of the current in a variety of different scenarios for both classwork. Students will complete a lab report based off of the guided inquiry lab for assessment.
Learning Performances
From this lesson students should be able to identify the direction of induced current for a variety of different scenarios.
Links to Standards or Benchmarks
Materials Needed
Worksheet_PhysicsIIA_Induction_2007.doc
galvonometer
solenoid
2 alligator connectors
bar magnet
Time Required
10 min – Recap, Attendance, Collect HW
20 min – Activity: Guided Inquiry Electromagnetic InductionLab
20 min - Lesson: Electromagnetic Induction
10 min - Classwork: Predict the direction of the current
10 min - Closure: Wrap up, Lab Report, Assign HW
Instructional Sequence
Recap
Question on board: students will determine the direction of a magnetic field due to a current carrying wire.
Collect HW
Take attendance.
Walk around checking students' understanding.
Use the students answers to recap over moving charges producing magnetic fields
Activity
Students will work in groups of 2 or 3 to complete the guided inquiry lab.
Have students report out their discoveries.
Lesson
Instruct students on the principles of electromagnetic induction
Emphasize that current is formed to oppose the change in the magnetic field
Use conservation of energy to prove the direction of current
Classwork
Students will be given a worksheet with a bunch of different diagrams, students must predict the direction of the current in the wire based off of electromagnetic induction..
Closure
Recap electromagnetic induction.
Have students go over their guided inquiry lab and see how it demonstrates electromagnetic induction
Students will complete a second worksheet of diagrams for homework.
Assessing Student Understanding
The students will be assessed on their production of a brief lab report write up.
Inquiry Lesson Feedback: Paul
Evaluated by: Jay F.Score: 5/10
Standards / Learning Performances
Is it clear that the lesson addresses both important content and scientific practices?
No. No standards, and only a single objective are included. ??
Instructional Activities
What science practices are required?
Students make observations. Though the lesson overview suggests that students will make predictions, this is not contained in the worksheet.How are the science practices supported?
Worksheet prompts ask students to record observations and interpretations, but does not ask students to support their claims with evidence.It is difficult to tell how instruction supports student thinking, since there is not detail included.
How are the science practices assessed?
Though it is mentioned that students will write a lab report, there is not indication about how or on what they will be assessed. The worksheet provides a good opportunity for formative assessment, but it is not clear that it will occur, i.e. what questions T will ask.